铁的化学沉淀和吸附法、石灰软化法、活性氧化铝净化法和逆流渗透法等都可以有效地去除或降低饮用水中砷的含量

• Such methods as the chemical precipitation and adsorption of iron,the lime softening,the activated alumina,and reverse osmosis can effectively remove the arsenic in the drinking water.